Suction cleaner agitator



Nov. 1, 1932. D. e. SMELLIE SUCTION CLEANER AGITATOR- Filed Nov. 6. 192906723? 2072416! 6 @welfi- Patented Nov. 1 1932" UNITED STATES PATENTOFFICE,

DONALD e. SMELLIE, or can-row, omo, nssmuon TO THE noovnn comm, A

- conromrron or orno SUCTION CLEANER AGITATOB Application filed November6, 1929. Serial N0. 405,092.

The present invention relates to suction cleaners and more. particularlyto suction cleaner agitators of the rotary type. The invention has forits object the provision of an 5 "agitator for a suction cleaner whichis of simple construction-and which may be economi calIy manufactured;the provision of an agitator constructed in a new and'novel manner.Other and more specific objects will appear from a consideration of thefollowing specification and the drawing annexed thereto.

Referring now to the drawing:

Figure 1 is a side view of an agitator constructed in accordance withthe present invention;

Figure 2 is a cross section upon the line 22 of Figure 1; I

Figure 3 is a cross section upon the line 33 of Figure 1;

Fi re 4 is a cross section upon the line 4-4 of Figure 1;

Figure 5 is a modified embodiment of the present invention;

Figure 6 is a cross section upon the line 66 of Figure 5;

Figure 7 is a view in perspective of a further modification of thepresent invention.

Referring now to Figures 1 to 4 in particular, a preferred embodiment ofthe present an invention is disclosed and comprises an agitator havingend plates 1 and 2 carried at the ends of the web 3, End plates 1 and 2are secured in any suitable manner as by welding. Web 3, as disclosed inFigures 2, 3 and 4. is 3 an elongated plate of relatively narrow widthat its center 4, but with thickened, and rounded edges forming beaterbars 5, 5. The member 1s warped in the sense of being twisted or folded,throughout its length so that the edges extending substantially throughan angle of 180 circumferentially. In order that the agitator maybedriven by the motor ofthe suc- 5, 5 describe helices of oppositeangularity' trude beyond the circumference of the plate 2. Stub-shafts 7and 8 are provided upon the end plates 1 and 2 respectively, which areadapted to be positioned within suitable bearing mountings in order thatthe agitator may -be rotatably supported within the nozzle of a suctioncleaner. The particular manner in which the agitator is supported in thenozzle forms no part of the present invention.

Referring now to Figures 5 and 6 in particular, a modified embodiment ofthe present invention is disclosed in which the smooth contour of thewarped plate 3 is interrupted between its ends by the presence of asection of reduced width which is adapted to receive a pulley indicatedby the reference character 9. Pulley 9 comprises two half-sections 10and 11 having inner faces '12 and 13 which conform .to the sides of theplate 3. The outer surfaces of the .half-sections 10 and 11 aresemi-circular and form, when positioned upon the agitator with theprojecting portions, 14, 14 and 15, 15 overlying the edges of thereduced section of the web 3, a circular pulley. Securing screws 16, 16are provided which pass from section 10, where their heads arepositioned below" the surface of the pulley in recesses 17, 17, throughthe web 3 and into. threaded seats 18, 18 in the half-section 11. Inthis embodig ment as the agitator is driven by a pulley positioned atthe center thereof the end plates 1 and 2 may be made identical and therecessed portion 6 of end plate 2, shown in the preferred embodiment, isunnecessary. The 5 present embodiment has the advantage that it may beused in suction cleaners in which the driving belt is positioned in thecenter of the cleaner. I

Referring now to Figure 7 a modification 9o .of the present invention isdisclosed in which bly and may be made of bakelite or any suitable'moldable material. The diameter of the cylindrical body issubstantially equal to the diameter of end plates 1 and 2, so that in 1nthe completed form only the rounded beating edges 5, 5 of the web 3 arevisible between a the plates 1 and 2, the remainder of the web agitatorand the agitator is revolved at high speed. The suction in the cleanernozzle lifts the surface covering undergoing cleaning into contact withthe revolving agitator and the rounded edges 5, 5 function as beaterbars to dislodge the embedded foreign matter by impaction.

The cleaning action of the present agitator is that characteristic ofthe usual positive agitator and no invention is claimed therein but whatis claimed as the applicants invention is an improved and simplifiedagitator construction which is characterized by simplicity, durabilityand efiiciency as set forth in the following claims.

I claim:

1. A suction cleaner agitator comprising spaced end members, means torotatably support said end members and means maintain- -ing said endmembers in fixed relative relation. comprising a plate rigidly attachedthereto the edges of which form beater elements.

2. A suction cleaner agitator comprising spaced end plates, means torotatably support said end plates and means maintaining said end platesin fixed relative relation comprising a folded web rigidly attached tosaid end plates, the edges of said web being at equal radial distancesfrom the common axis of p the end plates said edges extendi g in curvesl and forming beater elements.

An agitator for suction prlslng a plate folded in opposite directions atits opposite ends, the edges of the plate between their endsforming-oppositely advancing helices at a constant radial distance fromthe major axis of the plate, the said edges being rounded and formingbeater elements, supporting means at theends of said plate, and meansconnected to said plate to receive a rotating force.

4. An agitator for suction cleaners comprising a web having roundededges, 9. cylindrical body partially encasing said web with the roundededges extending therefrom and means to rotatably support said agitator.

.5. An agitator for suction cleaners comcleaners can? prising a warpedweb having, rounded edges forming beater elements, a cylindrical bodypartially encasing said web with the rounded edges extending therefrom,means to rotatably support said agitator and means secured to the webwhereby the web may be rotated. 6. An agitator for suction cleanerscomprising a web having rounded edges, said ,web

being folded so that said rounded edges de scribe helices havingopposite angularity, a cylindrical body partially encasing said web withthe rounded edges extending therefrom, means to rotatably support saidbody, and means secured to the web whereby it may be rotated. v

7 An agitator for suction cleaners comprising a web having spacedrounded edges,

an elongated body partially encasing saidcenter thereof and connectedthereto to receive a rotating force.

9. .A suctioncleaner agitator comprising a warped plate the edges ofWhlCh extend at a constant distance from and describe helices about themajor axis of the agitator and form beater elements, and means torotatably support said plate. v

Signed at Ganton','in the county of Stark, and State of Ohio, this 1stday of November,

. p DONALD G. SMELLIE.

